Comparison

Cortona3D Viewer vs Menlo AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cortona3D Viewer

View interactive 3D and 2D product catalogs, work instructions, and maintenance guides. Immerse yourself in 3D procedures and VRML scenes with augmented reality on your iPhone and iPad. Supports legacy 2D and interactive 3D content derived from CAD.

Highlights
  • Augmented reality support
  • Interactive 3D and 2D content
  • Multi-touch gestures for navigation
  • Exploded views and bill of materials
  • Part search and hide/show
  • Step-by-step instructions
  • Content upload and sharing
Features
Read full description

Cortona3D Viewer is your tool for interactive 3D and 2D product catalogs, work instructions, maintenance guides, and manuals created using Cortona3D RapidAuthor. With this tool, you can immerse yourself in 3D procedures and VRML scenes through augmented reality on your iPhone. Many equipment manufacturers are now enhancing their technical documentation. The Cortona3D Viewer supports AR, 3D interaction, full-text search, and interactive 2D elements, making it compatible with both legacy 2D and interactive 3D content derived from CAD. Interactive 3D streamlines complex maintenance and assembly communication, aids part identification, and facilitates mechanical skill training. It can also serve as a sales tool for product feature demos. Cortona3D Viewer on iOS complements RapidAuthor tools. RapidAuthor generates comprehensive technical documents with text, 2D, and 3D graphics from CAD and bill of materials data. Even if your company doesn't use Cortona3D RapidAuthor, you can still install Cortona3D Viewer to access sample content featuring 3D, legacy 2D graphics, and AR elements. Features: — AR support for procedures and VRML scenes — Multi-touch gestures for navigation — Exploded views and full bill of materials hierarchy — Part-specific additional information on touch — Various selection modes for parts — Part search, hide/show — Order parts using the shopping cart — Detailed Parts List with Part Number, Nomenclature, etc. — Links from IPC and procedures to other documents — Comprehensive viewing of 2D images in SGM and SVG formats — Inspect sheet transition animations in parts catalogs — Playback or scrub through animated install/remove sequences — Step-by-step instructions as text overlay — Dynamic cross-section and distance measuring — Navigation cube — Universal app for iPhone and iPad — Content upload and sharing via iCloud — Examples of ESA astronaut training content.

About

Menlo AI

This AI assistant enhances in-person meetings by automatically taking notes, identifying action items, and scheduling follow-ups. It prioritizes user privacy by storing all data locally on the device or in personal iCloud accounts. The app offers seamless calendar integration and quick sharing of meeting summaries.

Highlights
  • Private AI note-taking for in-person meetings
  • Automatic action item detection with reminders
  • Calendar integration and meeting reminders
  • Secure data storage on device or iCloud
  • Quick sharing of meeting summaries
  • Automatic event detection
Features
Read full description

Menlo AI: The ultimate AI assistant for in-person / offline meetings now support Arabic language. 100% Private & Secure – Menlo AI keeps all data on your phone or in your personal iCloud account. Transform the way you meet with Menlo AI, your intelligent meeting assistant. Powered by cutting-edge AI, Menlo AI takes care of note-taking, action items, scheduling, and follow-ups—so you can focus on what truly matters. Try it on your next in-person meeting. Whether you’re collaborating with a team or working solo, Menlo AI ensures every meeting is productive and hassle-free. Simply integrate your calendar, join your meetings, and let Menlo do the rest. Key Features: 1. The first fully private AI note-taker for in-person meetings. Your data stays secure—on your phone or iCloud. We don't have cloud storage. 2. Home Screen: A beautifully designed Home Screen that gives you a glimpse of upcoming meetings and quick overviews of completed ones. No meetings? Enjoy your day! 3. Taking Notes: We love meeting people in person—whether at coffee shops, offices, or even while commuting. Menlo is designed to automatically detect your meeting environment and optimize the quality of your summary. It silently captures notes, even when your phone is locked. 4. Capture What Matters Most : - Main discussion points - Key decisions - Action Items with Reminders - Events with Reminders 5. Calendar Integration : Seamlessly sync with your favourite calendars and receive reminders to start taking notes for your meetings. 6. Action Items : Menlo automatically captures action items and calculates the best time to remind you. View all your tasks seamlessly in the Action View screen. 7. Events : Automatically detect event time, date and location based on the context discussed during the meeting. 8. Share Summaries : Share meeting notes and tasks with your team instantly. No more spending hours sharing meeting summaries. 9. Quick Overview : Every meeting generates a concise summary, displayed right on the Home Screen for easy access. 10. Secure & Private : Your data is stored on your device or your iCloud. Elevate your in-person meeting experience with Menlo AI—the app that helps you work smarter, not harder. Download now and make every meeting better! Terms of Service : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy : https://www.menloai.app/privacy

Screenshots

Cortona3D Viewer4 screens
Menlo AI4 screens

Verdict

The call

The clearest difference is review sentiment: Menlo AI at 93% against Cortona3D Viewer's 40%. Menlo AI also leads on price (Free vs $2.99) and rating (4.5 vs 3.0). Cortona3D Viewer's advantage is in-app purchases (none vs 2). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Menlo AI is free to download; Cortona3D Viewer costs $2.99 up front. Menlo AI sells 2 in-app purchases, starting at $7.99 per month. Cortona3D Viewer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Menlo AI holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 40% of Cortona3D Viewer's written reviews are positive against 93% of Menlo AI's.

UpkeepUpdate frequency

Cortona3D Viewer ships an update every 7 months, Menlo AI every 5 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Cortona3D Viewer versus Menlo AI: the parameters behind the verdict, then further details
ParameterCortona3D ViewerMenlo AI
Price$2.99Free — better
Rating3.0 (4 ratings)4.5 (8 ratings) — better
Positive reviews40.0% of reviews92.9% of reviews — better
Number of ratings48 — better
Update frequencyEvery 7 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size96 MB17 MB
Age rating4+17+
DeveloperParallelGraphicsRohildev Nattukallingal

Customer experience

Cortona3D Viewer

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

Menlo AI

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews14 reviews
Positive92.9%
Neutral0.0%
Negative7.1%

In-app purchases

None

Cortona3D Viewer

No in-app purchases

2 purchases

Menlo AI

Subscriptions2
  • Menlo AI Pro$7.991 Month
  • Menlo AI Pro1 Year trial$99.991 Year

Questions

Is Cortona3D Viewer free?
Cortona3D Viewer costs $2.99, with no in-app purchases.
Is Menlo AI free?
Menlo AI is free to download, with in-app purchases available.
Which has better reviews, Cortona3D Viewer or Menlo AI?
Menlo AI is rated higher. Cortona3D Viewer averages 3.0 out of 5 from 4 ratings, while Menlo AI averages 4.5 from 8 ratings.
Do Cortona3D Viewer or Menlo AI have ads?
Neither Cortona3D Viewer nor Menlo AI shows ads.
Which is updated more often, Cortona3D Viewer or Menlo AI?
Cortona3D Viewer ships an update every 7 months, and Menlo AI every 5 days. Most recently, Cortona3D Viewer was updated on November 1, 2026 and Menlo AI on October 30, 2026.

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